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Posts Tagged ‘Louisiana’

Gulf of Mexico ‘dead zone’ twice what it was last year, but not a record

August 2, 2013 Comments off

blog.al.com

2013 gulf dead zoneThis year’s so-called “dead zone” in the Gulf of Mexico, an area where a lack of oxygen kills sea life that can’t swim away, is twice the size of last year’s, according to scientists, but it’s not a record.

The recurring area of low oxygen covers 5,840 square miles of the Gulf floor this year. Scientists had expected a record zone area due to a wet spring.

The zone is created each year when farm fertilizer from the Mississippi River Basin washes into the Gulf of Mexico, feeding algae blooms that, in turn, die and sink to the bottom of the mouth of the river. There they decompose and use up the oxygen.

Scientists from Louisiana State University and the University of Michigan had expected a wet spring to bring record levels of nutrients to the Gulf, leading to a dead zone that could have approached or exceeded the largest ever recorded — the one in Read more…

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Seismic activity rose, then dropped after ‘burp’

January 22, 2013 Comments off

shreveporttimes.com

Scientists have noticed a recent increase in seismic activity near the 8.5-acre sinkhole at Bayou Corne.

 Scientists have noticed a recent increase in seismic activity near the 8.5-acre sinkhole at Bayou Corne. / Associated Press
Associated Press

BAYOU CORNE — Scientists have noticed a recent increase in seismic activity near the 8.5-acre sinkhole at Bayou Corne, and worry that it might grow again, Assumption Parish officials say.

The increase was first noticed about two weeks ago, John Boudreaux, director of the Assumption Parish Office of Homeland Security and Emergency Preparedness, said.

Scientists noticed more than 80 such events on Friday, but activity dropped after the sinkhole “burped” crude oil, debris and Read more…

New figures: More of US at risk to sea level rise

March 14, 2012 2 comments

ap.org

WASHINGTON (AP) — Nearly 4 million people across the United States, from Los Angeles to much of the East Coast, live in homes more prone to flooding from rising seas fueled by global warming, according to a new method of looking at flood risk published in two scientific papers.

The cities that have the most people living within three feet (one meter) of high tide – the projected sea level rise by the year 2100 made by many scientists and computer models – are in Florida, Louisiana, and New York. New York City, often not thought of as a city prone to flooding, has 141,000 people at risk, which is second only to New Orleans’ 284,000. The two big Southeast Florida counties, Miami-Dade and Broward, have 312,000 people at risk combined.

All told, 3.7 million people live in homes within three feet of high tide. More than 500 US cities have at least 10 percent of the population at increased risk, the studies said.

“Southeast Florida is definitely the highest density of population that’s really on Read more…

New Orleans braces for Tropical Storm Lee

September 4, 2011 Comments off

rawstory

NEW ORLEANS (Reuters) – New Orleans, devastated by Hurricane Katrina six years ago, faced a new threat on Saturday from Tropical Storm Lee, which was set to challenge the city’s flood defenses with an onslaught of heavy rain.

The storm was expected to bring up to 20 inches of rain to southeast Louisiana over the next few days, including to low-lying New Orleans, the U.S. National Hurricane Center said.

Lee’s tidal surge could spur coastal flooding in Louisiana, Mississippi and Alabama before drenching a large swath of the Southeast and Appalachian regions next week.

The slow-moving storm has bedeviled forecasters. Lee’s winds weakened on Saturday night as it Read more…

Rare brain amoeba claims three lives

August 20, 2011 Comments off

abc

Image Wikipedia

Three young Americans have died this year from a rare water-borne amoeba that swims up through the nose and infects the brain, the Centre for Disease Control (CDC) said.

Naegleria fowleri – an amoeba found in warm freshwater lakes and rivers and occasionally in poorly treated swimming pools – causes a “rare, but severe” brain infection and kills around three people a year, the CDC said.

In the first week the disease causes major headaches, fever, vomiting and a stiffening of the neck, eventually leading to confusion, seizures and Read more…

Heat wave chokes southern U.S.

August 5, 2011 Comments off

thestar

The suffocating heat wave sweeping the southern U.S. that has led to at least four deaths and left farmers’ fields bone dry shows no signs of abating as temperatures continue to reach record highs and electricity demand threatens to cripple the power grid.

The National Weather Service issued yet more excessive heat warnings Thursday for most of the southern plains, where the temperature in parts of Kansas, Oklahoma, Arkansas, Tennessee, Mississippi, Louisiana, and Texas reached as high as 43C, without the humidex.

Southern parts of California and Arizona in the west and Georgia, Florida and the Carolinas in the east also fell under heat advisories, while municipalities and counties scrambled to open cooling centres and make house calls on vulnerable residents.

Dallas marked its 34th straight day of temperatures over 38C, while on Wednesday, Fort Smith, Ark., saw the temperature reach 46C without the humidex, breaking a record of 42C set back in 1896.

As if things couldn’t get any worse, Florida residents are bracing for the Read more…

Drought by area impacted is worst ever – though majority of US still drought free

August 2, 2011 Comments off

wattsupwiththat

From the University of Nebraska-Lincoln , a new record in the 12 year old drought monitor.

US sets drought monitor’s ‘exceptional drought’ record in July

Worst classification for drought in nearly 12 percent of contiguous US

US Drought Monitor, July 26, 2011

The percent of contiguous U.S. land area experiencing exceptional drought in July reached the highest levels in the history of the U.S. Drought Monitor, an official at the National Drought Mitigation Center at the University of Nebraska-Lincoln said.

Nearly 12 percent of the contiguous United States fell into the “exceptional” classification during the month, peaking at 11.96 percent on July 12. That level of exceptional drought had never before been seen in the monitor’s 12-year history, said Brian Fuchs, UNL assistant geoscientist and climatologist at the NDMC.

The monitor uses a ranking system that Read more…